Cotter-pin puller



May 18 1926. 1,585,588

G. F. KRIEGER COTTER PIN FULLER Filed April 18 1925 2 Sheets-Shget 1 NVENTOR. Gebzye Z fji izqyel Z BY May 18 1926. 1,585,588

I G. F. KRIEGER COTTER PIN FULLER Filed April 1 1925 2 Sheets-Sheet 2 INVENTOR.

6607:961'7E7' ieyez;

" ,6 ATTOIWEY-v Patented May 13,

UNITED STATES PATENT GFFIQE.

GEORGE F. KBIEGER, OF WISCONSIN RAPIDS, WISCONSIN.

COTTER-IEIN FULLER.

Application filed April 18, 1925.

This invention relates to a tool -of the pliers type, and has for its object to provide, in a manner as hereinafter set forth, a tool of the class referred to, with means for attaching it to the head of a cotter p n to provide for the expeditious removal of the pin by turning the tool when closed on lts longitudinal axis.

Further objects of the invention are to provide, in a manner as hereinafter referred to, a cotter pin pulling, extracting or withdrawing tool, which is simple in its construction and arrangement, strong, durable, compact, thoroughly etlicient and convenient in its use, and comparatively inexpenslve to manufacture.

With the foregoing and other objects in view. the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embod1- ment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a rear elevation, broken away, ofa tool in accordance with this invention, and with the tool in open position.

Figure 2 is a front elevation, broken away, of a tool, in accordance with this invention and with the tool closed.

Figure-3 is an edge View, broken away, of a tool in accordance with this invention, and further illustrating ,a cotter pin coupled thereto.

Figure 4 is a sectional view on line 44, Figure 1 and further illustrating a cotter pin coupled thereto.

Figure 5 is a section on line 5-5, Figure 4.

Figure 6 is a front elevation, broken away, of a modified form of tool, in accord ance with this invention, and with the tool in closed position.

Figure 7 is a section on line 7'?, Figure 6. and further illustrating a cotter pin coupled therewith.

Figure 8 is a top plan view of the form shown in Figure 6.

Figure 9 is a section on line 9--9, Figure'7.

Figure 10 is a front elevation, broken Serial No. 24,244.

away, of another modified form of tool, in accordance with this invention, and further illustrating the tool in full lines closed and m dotted lines extended or opened.

Figure 11 is an edge view of the form shown in Figure 10.

Figure 12 is a section on line 1212, Figure 10, and further illustrating a cotter pin connecter therewith.

Figure 13 is a front elevation of another modified form of tool, in accordance with this mvention, and further illustrating in full lines the tool closed and in dotted lines extended or opened.

Figure 14 is an edge View of the form shown in Figure 13. Referring to Figures 1 to 5 0f the draw ngs, 1 denotes a handle member terminatmg in an" offset circular enlargement 2, having pro ecting therefrom a jaw member 3, which is offset with respect to the handle member 1. The handle member 1, at its point of joinder with the enlargement 2, is extended laterally therefrom to provide a shoulder 4-, and the jaw member 3, at its point of joinder with the enlargement 2, extends laterally therefrom to provide a shoulder 5. The jaw member 3 is of greater thickness than the thickness of the eiilargement 2 and the outer face of the latter is flush with the inner face of the former, whereby the member 3 will project from the enlargement 2. The tool further includes a handle member 6 terminating in an offset circular enlargement 7, which is provided with a jaw member 8 oifset with respect to the handle member 6 and which opposes the jaw member 3. The enlargement 7 is formed with a circular cavity 9, in which is mountedthe circular enlargement 2, and the latter is of less thickness than the thickness of the handle member 1.

The jaw member 3 rides against the enlargement 7, as indicated at 10. The jaw member 8 rides against the circular enlargement, as indicated at 11. The handle memher 1 rides against the circular enlargement 7, as indicated at 12 and the handle member 6 rides against the circularenlargement 2, as indicated at 13. The circular enlargement 12 is pivotally connected to thecircular enlargement 7 by a pivot pin 14. The handle member 6 and jaw member 8 are offset re spectively from the circular enlargement 7 to provide shoulders 15, 16 respectively. The shoulder t cooperates with the shoulder 16 and the shoulder 5 cooperates with the shoulder 15 for limiting the outward movement of the jaw members 3, 8.

The jaw members 3, 8 are oppositely disposed with respect to each other, but each is of the same construction, and the description of one will apply to the other. The outer corners of the inner face of each of the jaw members are provided with an inwardly extending protuberance, and the said pr tuberances are indicated at 17, 18, and the inner face of the jaw member adjacent the base of the protuberance is formed with a groove 19.

The rear side of each of the jaw members is cut away to provide a lengthwise extend ing mortise 20, having its forward terminus arranged at a point between the transverse center and the outer end of the jaw member and that portion of the inner face of the jaw member from the outer terminus of the mortise 20 to the grooves 19 and forward end edge of said inner face is serrated or toothed, as indicated at 21, to provide gripping portions. The mortise 20 has its inner end terminate at a circular enlargement and the inner face of the jaw member, between the outer and inner terminus of the mortise 20 is inset, as indicated at- 22. Mounted in the mortise 20 and extended from the inset 22 of the inner face of the jaw member is a 7 cutting blade 23. Formed integral with the outer side of the jaw member at a point between the serrated part of the inner face of the aw member and the cutter blade 23 is a transversely extending tapered protuberance 24, which projects from the inset 22 and terminates at the longitudinal center of the tool. The protuberances 24 are oppositely disposed with respect to each other and when the tool is closed abut, at the longitudinal center of the latter. The protuberanees 17 and 18 of one jaw member are oppositely disposed with respect to the protuberances 17 and 18 of the other jaw member and when the tool is closed the pair of protuberances at the outer end of one jaw member abuts against the pair of protuberances at the outer end of the other jaw memher at the longitudinal center of the tool. The pair of protuberances 18, or the pair of protuberances 17, or the pair of protuberances 24 are employed to couple or connect the head 25 of a cotter pin 26 to the tool, and when the head 25 is connected to a pair of protuberances 17 or to a pair of protuberances 18, the head 25 seats in a pair of the grooves 19. The grooves 19 provide what may be termed a countersunk portion to receive the head 25 of the pin 26.

Vhen the head 25 of the pin 26 is connected to the tool, through the medium of a pair of abutting protuberances, the tool is then turned on its longitudinal axis and which extracts, pulls or withdraws the cotter pin. The gripping surfaces 21 can be employed for any purpose for which it is found applicable, and the cotter blades employed to cut wire or any other object for which they are found applicable.

The protuberanccs 2a are offset with respect to the outer sides of the jaw members and each of which is formed of what may be termed a pair of arms or legs, one of greater length than and disposed substantially at right angles with respect to the other, or in other words each protuberance is substantially L-shaped. The shorter arm or leg is integral with the forward face of the jaw and the longer arm or leg is integral with the outer end of the shorter arm or leg and extends towards the inner face of the jaw, as well as transversely of and is spaced from the forward face of the jaw. The shorter arm projects at a substantial distance outwardly from the forward face of the jaw, so that a space will be formed between said face and the long arm or leg.

In the form of tool shown in Figures 6, T, 8 and 9, it comprises a pair of handle members 6, 7, provided with circular enlargements 8, 9 respectively, and with the former seating in a cavity 10 formed in the latter. Extended from the enlargement 9 is a jaw member 11, and extended from the enlargement 8' is a jaw member 12. The enlargements 8, 9, are pivotally connected together, as at 13, and grooved as at 14: to provide wire cutting means. As the construction of each of the jaw members embodied in the form shown in Figures 6, 7, 8

and 9 is the same, but one vwi il be described, as the description of one will apply to the other, and each of said jaw members has its inner face provided with a pair of plane portions 15, 16 spaced by an inset toothed portion 17. The inner face of each of the jaw members is formed with a pair of semicircular transversely extending grooves 18 and 19 and with the former of less width than the latter. The groove 18 separates the plane surface 15 from a toothed portion 20 formed at the outer end of the inner face of the jaw member, and the groove 19 separates the plane surface 16 from a plane surface 21 formed on the inner face of the jaw member at the inner end thereof. One end of the plane surface 16 is formed with a protuberance 22 which projects beyond the toothed portion 17, and the outer side of each jaw member is formed with a trans versely extending protuberance 23, which is of the same angular contour as the protuberance 24 and opposes one end of the groove 18, as well as being spaced from said end. The protuberances 22 are of a length to abut against each other when the tool is closed and the protuberances 23 are also of a length to abut against each other when the tool is closed.

iii

The abutting of the protuberances 22 01 protuberances 23 is had at the longitudinal center of the tool. The toothed parts 17 and 20 on the inner face of the jaw members provide gripping surfaces and the grooves 19 when the jaw members are closed form a circular opening for gripping cylindrical articles. The grooves 18 provide a clearance for the head 25 of the cotter pin 26.

Referring to Figures 10, 11 and 12, the tool comprises a pair of handle members 27, 28, which extend across each otherand are pivotally connected together, as at 29. The handle member 28 is provided with an oifset jaw member 30 and the handle member 27 with an offset jaw member 31. As each of the jaw members is of the same construction only one will be described, as the description of one applies to the other. Each of the jaw members has its inner face, at its outer end, formed with a pair of tapering protuberances 32, and each of which is offset with respect to a side face of the jaw member, and the inner face of the latter at its outer end is grooved, as at 33, forming a counter-sunk part. The inner face of the jaw member, intermediate its ends, is provided with a transversely extending semioval shaped grooove 34, and said inner face between the grooves 33 and 34 is serrated or toothed, as at 35. The forward side face of each of the jaw members has formed integral therewith a protuberance and the protuberance integral with the jaw member 30 is indicated at 36, and that carried by the jaw member 31, at 37. The protuberances 36 and 37, are of like construction, but extend in opposite directions with respect to each other and each is substantially L- shaped, as the protuberance is formed with a short and a long arm or leg integral with the outer end of the short arm or leg which is integral with the jaw member. The long arm or leg extends towards the inner face of the jaw member. The protuberances have their elongated arms or legs disposed upon an arc and are of a length to project beyond the longitudinal center of the tool. Each protuberance extends across groove 34 of one jaw member and partly across the end of the groove 34 in the other jaw member. The inner end terminal portions of the protuberances 36, 37 ride against each other when the tool is closed, see Figure 10, and are clear of each other when the tool is open. See Figure 10. The function of the protu-- berances 32 and 36 and 37 is the same as that of the protuberances shown in Figures 1 and 6.

In the form shown in Figures 13 and 14, the jaw members are indicated at 38, 39 and ach of the inner faces thereof is plane. The handle members are indicated at 4.0, 41 and which are pivotally connected together, as

at 42. The forward face of the jaw member 38, between the pivot 42 and the free end of said member, is provided with a transversely extending protuberance 43 of a length to project beyond the inner face of the jaw member and with the projecting portion downwardly curved, as at 44 and formed with a flat lower face 45. The forward face of the jaw member 39 is provided with a transversely extending protuberance 46 of the same shape as the protuberance 43 but oppositely disposed with respect thereto. The flat faces of the protuberances 43, 46 ride against each other. The function of the protuberances 43, 46 is the same as that set forth in connection with the protuberances herein before referred to.

Vhen the tool has been coupled to the cotter pin, any suitable remote portion to the coupling point can be used as a fulcrum when extracting the pin, more particularly the tip of the jaws of the tool.

lVhen the head of the cotter pin is coupled to the tool, the tool is then turned on its longitudinal axis and which withdraws, extracts or pulls the cotter pin from position, and it is thought that the many advantages of a tool, in accordance with this invention, for extracting cotter pins, can be readily understood, and although the preferred embodiments of the invention are as illustrated and described, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

What I claim is 2- 1. A tool for the purpose set forth comprising a body portion formed of a pair of handles pivotally connected together and each provided with a jaw member, and meansextending transversely of and connected at one end to one side of each of the jaw members and coacting with each other for detachably connecting the head of a cotter pin therewith, said means on each of said jaw members positioned intermediate the ends and having a portion of the length thereof opposing and spaced from that side of the jaw member to which the end of said means is connected.

2. A tool for the purpose set forth comprising a body portion formed of a pair of handle members pivotally connected together and each provided with a jaw member, each of said jaw members having each outer corner of its inner face provided with a protuberance, the inner ends of the protuberances, of one jaw member adapted to abut the protuberances of the other jaw member for detachably connecting the head of a cotter pin to the body portion.

3. A tool for the purpose set forth comprising a body portion formed of a pair of handle members pivotally connected together and each provided with a jaw member,

each of said jaw members having each outer corner of its inner face provided with a protuberance, the inner ends of the protuberen'ces of one ja w member adapted to abut the protuberances of the other jawinember for detachably connecting the head of a cotter pin to the body portion, the inner face of each of said jaw members provided with a groove at the base of each protuberance.

at. A tool for the purpose set forth comprising a body portion formed of a pair of handle members pivotally connected together and each provided with a ja member, each of said jaw members having its forward side intermediate its ends provided with a transversely extending L-shaped protuberance, the protuberances of one jaw member'adapted to abut against the protuberances of the other jaw member at the longitudinal center of the body portion when extracting a cotter pin.

5. A tool for the purpose set forth com )liSlli a body ortion formed of a )air of handle members pivotally connected together and each provided with a jaw member, each of said jaw members having its forward side intermediate its ends provided with a transversely extending L-shaped protuberance, the protuberances of one jaw member adapted to abut against the protuberan'ces of the other jaw member at the longitudinal center of the body portion when extracting a cotter pin, and each of said jaw members having its inner face provided with means associated with each of said protuberances to provide a clearance for the head of a cotter pin.

6. A tool for t is purpose set forth comprising a body portion formed of a pair of handle members pivotally connected together and each provided with a jaw member, said jaw members opposing each other and each having a curved groove in its inner face at each outer corner thereof, and each of said jaw members further having its inner face formed with a protuberance extended from one side of the curved groove, the protuberanccs of one member coacting with the protuberances of the other member to connect the head of acotter pin to said body portion.

7. A tool comprising a body portion formed of a pair of pivotally connected sections each consisting of a handle member terminating in a jaw, each of said sections intermediate its ends having its inner face formed with a groove, said grooves providing a clearance for the head of a cotter pin, and each of said sections further provided on one side thereof with a protuberance, having a portion thereof extending transversely of and spaced from said sections, said protuberances having their inner ends coacting for connecting acotter pin therewith, said coacting inner ends of the protnberances opposing one end of said grooves.

8. A tool comprising a body portion formed of a pair of pivotally connected sections each consisting of a handle member terminating in a jaw, each of said sections intermediate its ends having its inner face formed with a groove, said grooves providing a clearance for the head of a cotter pin, and each of said sections further provided on one side thereof with a protuberance, having a portion thereof extending transversely of and spaced from said sections, said pro- .tnberances .oaving their inner ends coacting for connecting a cotter pin therewith, said coat-ting inner ends of the protuberanccs opposing one end of said grooves,-said protuberances being of corresponding contour and L-shaped.

In testimony whereof, I affix my signature hereto.

GEORGE F. KRIEGEE. 

